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Seoul National University
Turbomachinery LaboratoryProf. Seung Jin Song
Seoul National University2
Prof. Seung Jin Song
E-mail [email protected]
Phone 02-880-1667
Education
BS Duke University
SM Massachusetts Institute of Technology
ScD Massachusetts Institute of Technology
Faculty
Website: https://www.tml.snu.ac.kr/
Seoul National University3
Facilities
SNU Inducer test rigSNU-KARI Transonic
Centrifugal Compressor
Seoul National University4
Facilities
SNU 4-stage Axial Compressor SNU 1-stage Turbine
Seoul National University5
Facilities
Transonic Compressor Cascade Subsonic Wind Tunnel
Seoul National University
Gas Turbines for Propulsion and Power Generation
Gas turbines are widely used for aircraft propulsion and power generation,
including renewable power systems. Our research covers aerodynamic
aspects of the major parts of gas turbines, including compressors, turbines,
ducts, and secondary air systems. Focus is on improving aerodynamic
performance, or reducing losses, in these devices to minimize their
environmental impact.
Axial Compressors
Stability enhancement
Unsteady 3-D multi-stage wake behavior
Humidity effects on transonic compressor
cascade performance
Axial Turbines
Boundary layer transition
Interaction between leakage flows and passage flows
Purge flows in turbine disc cavities and rim seal flows
Partial shroud flows
Performance enhancement in Oxy-combustion Cycle CO2 turbines
6
Research Areas 1
Seoul National University7
Industrial Turbomachines
Radial turbomachines are widely used in oil and gas industries as well as in
industrial environments. In natural gas handling equipment, for example, real
gas effects, condensation, and vibration can affect performance.
Radial Compressors
Forced response of a centrifugal
compressor impeller due to diffuser vanes
Non-axisymmetric flows and rotordynamic
forces in shrouded radial compressors
Radial Expanders
Non-axisymmetric flows and rotordynamic
forces in shrouded radial compressors
Research Areas 2
Seoul National University8
Turbopumps for Rockets and Hypersonic Propulsion
Liquid propellant rockets are advanced launchers which facilitate thrust
control, and turbopumps, which pump liquid fuel and oxidizer into the
combustion chamber, are some of the most difficult components to design
and manufacture. Often, an inducer is placed in front of the turbopump
impeller to mitigate cavitation and increase suction performance. Like the
impeller, the inducer itself can suffer from cavitation, giving rise to
instabilities such as rotating cavitation and cavitation surge.
Cavitation instabilities in turbopump inducers
Laser-induced cavitation
Research Areas 3
Seoul National University9
Optimization of Renewable Energy Integration into Energy
Systems
Worldwide, renewable energy (wind, solar, geothermal, etc.) is increasingly
being incorporated into energy systems, especially in distributed power
generation systems, to provide heating/cooling and power. TML is
developing a framework to optimize such systems for varying policy
scenarios.
Optimization of renewable energy integration into energy systems
Research Areas 4
Seoul National University10
Detail introduction of each researches is well
introduced on our website : https://www.tml.snu.ac.kr/
If you have any questions about our research areas and
admission, feel free to contact us
E-mail [email protected] / [email protected]
Phone +82-2-880-1701
Office 301-1212
Thank you
